Set velocity value each time I instantiate a Niagara Effect

Hi!

I’m working with Unreal 5.3 and this is the first time I work with Niagara Effects.

I have create a ribbon trail and I want to pass the value of the Velocity as an argument. I don’t know if I can do that, but this type of velocity, with Z value equals to 50.0, doesn’t work for me:

Because I always get this effect:

So, I have read it a lot and watched some videos about Niagara Parameters. And I don’t know if I’ve done it well, but I’ve done this:

But now, I don’t know how to use these kind of parameters.

If I want to set the value of Velocity each time I instantiate the Niagara Effect, how can I do it?

Thanks!

https://www.youtube.com/watch?v=l3_zScxXPfg i have multiple tutorials series covering all forces in niagara.